A sample of 10 observations taken from a normally distributed population yielded the following data.

43503048 46 39 47364157

Note: Use Table V in Appendix C to compute the probabilities.

(a)What is the point estimate of?

=

(b)Findtfor 95% confidence level.

t=

Round the answer to three decimal places.

(c)Make a 95% confidence interval for.

Round the answers to four decimal places.

<<

(d)What is the margin of error of estimate forin part (c)?

Round the answer to four decimal places.

E=